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Upper Devonian marine-nonmarine transition, southern Pennsylvania / by Roger G. Walker.
LIBRA QE665 .W34
Available from offsite location
- Format:
- Book
- Author/Creator:
- Walker, Roger G.
- Series:
- Progress report (Pennsylvania. Bureau of Topographic and Geologic Survey) ; G62.
- General geology report [G]62
- Language:
- English
- Subjects (All):
- Geology, Stratigraphic--Devonian.
- Geology, Stratigraphic.
- Geology--Pennsylvania.
- Geology.
- Pennsylvania.
- Physical Description:
- vi, 25 pages : illustrations ; 23 cm.
- Place of Publication:
- Harrisburg : [Commonwealth of Pennsylvania, Bureau of Topographic and Geologic Survey], 1972.
- Notes:
- Part of illustrative matter in pocket.
- "Pennsylvania Geological Survey fourth series."
- Bibliography: page 25.
- OCLC:
- 806662
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